Samsung HS50 Manual do Utilizador descarregar pdf (Página 63)

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Chapter 7 Diagnosis Modes

X

Finishing HPRF

While HPRF is in use, decrease the scale value by one step to nish HPRF. Here, the PRF value

becomes the maximum value in the current PW Spectral Doppler mode.

X

Moving Sample Volume

To move the Sample Volume position in the D Only state, the system calculates PRF values

and the Phantom Gate position, and updates them on the PW Spectral Doppler image.

HPRF is terminated when HPRF cannot be activated.

When Sample Volume is moved in the 2D Only state, the PRF values don’t change.

CAUTION:

X

The Phantom Gate position can be located outside the 2D image area in Zoom Mode.

X

Make sure that sample volume and Phantom Gate are not placed together in the measuring

area. If more than two Sample Volumes are located in the vessels, all Doppler components will

appear in the spectrum, causing noise.

 PW Spectral Doppler Mode Menu



Simultaneous

Tap Simultaneous on the touch screen. Each time you tap the button, the Simultaneous

function turns on or o. If the Simultaneous option is turned on, you can view real-time 2D

and spectral Doppler images at the same time. If the option is not turned on, however, you will

only be able to view the image from one of the modes. The Simultaneous function decreases

Doppler PRF, thus decreasing the measurable speed range.



Invert

Tap Invert on the touch screen. Each time the button is tapped, the speed indicator (+/–) for a

spectrum is inverted.



Auto Calc

Tap Auto Calc on the touch screen to select O, Live, or Frozen.

X

Live setting: The PS, ED, MD, PI, RI, PS/ED, ED/PS, HR, TAmax, and TAmean are calculated after

acquiring the Doppler Trace.

X

Frozen setting: The PS, ED, MD, PI, RI, PS/ED, ED/PS, HR, TAmax, and TAmean are calculated

when the image is frozen.

Values that are displayed on screen are selected at Setup > Measurement > AutoCalc.

For selecting displayed values, refer to the measurement settings in ‘Chapter 3. Utilities’.

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OSCAR 23 Apr 2025 | 08:21:36

Samsung HS50 Manual do Utilizador Página 63